﻿// --------------------------------------------------------------------------------------------------------------------
// <copyright file="DoubleConverter.cs" company="CodePlex">
//   The MIT License
//   Copyright (c) 2013 Julien Blin
//   
//   Permission is hereby granted, free of charge, to any person obtaining a copy
//   of this software and associated documentation files (the "Software"), to deal
//   in the Software without restriction, including without limitation the rights
//   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//   copies of the Software, and to permit persons to whom the Software is
//   furnished to do so, subject to the following conditions:
//   
//   The above copyright notice and this permission notice shall be included in
//   all copies or substantial portions of the Software.
//   
//   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//   THE SOFTWARE.
// </copyright>
// --------------------------------------------------------------------------------------------------------------------

namespace UCodeFirst.Converters
{
    using System.Globalization;
    using System.Reflection;

    /// <summary>
    /// A <see cref="IConverter"/> for <see cref="double"/>.
    /// </summary>
    public class DoubleConverter : IConverter
    {
        /// <summary>
        /// Read the value from Umbraco (<paramref name="value"/>) and converts it for the target property.
        /// Tries its best to convert anything to <see cref="double"/>.
        /// </summary>
        /// <param name="propertyInfo">
        ///     The target property info.
        /// </param>
        /// <param name="value">
        ///     The value from Umbraco.
        /// </param>
        /// <returns>
        /// The converted value.
        /// </returns>
        public object Read(PropertyInfo propertyInfo, string value)
        {
            double parsedResult;
            if (double.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out parsedResult))
            {
                return parsedResult;
            }

            if (propertyInfo.PropertyType.IsNullable())
            {
                return null;
            }

            return default(double);
        }
    }
}
